Добавил:

fench Опубликованный материал нарушает ваши авторские права? Сообщите нам.

Вуз:

Сумский государственный университет

Предмет:

Микроконтроллеры ЭВМ

Файл:

The insider's guide to the Philips ARM7-based microcontrollers (T. Martin, 2005)

.pdf

Скачиваний:

143

Добавлен:

12.08.2013

Размер:

6.1 Mб

Скачать

☆

1 / 201 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 > Следующая >>>

The Insider's Guide To The

Philips ARM7-Based

Microcontrollers

An Engineer's Introduction To The LPC2100 Series

Trevor Martin BSc. (hons.) CEng. MIEE

www.hitex.co.uk/arm

Introduction to the LPC2000	Introduction

Published by Hitex (UK) Ltd.

ISBN: 0-9549988 1

First Published February 2005

First Reprint April 2005

Hitex (UK) Ltd.

Sir William Lyons Road

University Of Warwick Science Park

Coventry, CV4 7EZ

Credits
Author:	Trevor Martin
Illustrator:	Sarah Latchford
Editors:	Alison Wenlock & Michael Beach
Cover:	Michael Beach

Acknowledgements

The author would like to thank Kees van Seventer and Chris Davies of Philips Semiconductors for their assistance in compiling this book

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical or photocopying, recording or otherwise without the prior written permission of the Publisher.

Introduction to the LPC2000	Introduction

Introduction to the LPC2000	Introduction

Introduction ........................................................................................................................	8
Chapter 1: The ARM7 CPU Core .................................................................	10
Outline...............................................................................................................................	10
The Pipeline ......................................................................................................................	10
Registers ............................................................................................................................	11
Current Program Status Register...................................................................................	12
Exception Modes ..............................................................................................................	13
ARM 7 Instruction Set.....................................................................................................	16
Branching .......................................................................................................................	18
Data Processing Instructions ..........................................................................................	19
Copying Registers ......................................................................................................	20
Copying Multiple Registers .......................................................................................	20
Swap Instruction ..............................................................................................................	21
Modifying The Status Registers......................................................................................	21
Software Interrupt ...........................................................................................................	22
MAC Unit..........................................................................................................................	23
THUMB Instruction Set ..................................................................................................	24
Summary...........................................................................................................................	26
Chapter 2: Software Development ................................................................	27
Outline...............................................................................................................................	27
Which Compiler? .............................................................................................................	27
uVISION IDE.................................................................................................................	28
Tutorial ...........................................................................................................................	28
Startup Code.....................................................................................................................	29
Interworking ARM/THUMB Code ................................................................................	31
STDIO Libraries ..............................................................................................................	32
Accessing Peripherals ......................................................................................................	33
Interrupt Service Routines ..............................................................................................	34
Exception source Constants table C function prototype .........................................	34
Software Interrupt ...........................................................................................................	36
Locating Code In RAM....................................................................................................	36
Operating System Support ..............................................................................................	38
Fixing Objects At Absolute Locations............................................................................	38
Inline Assembler...............................................................................................................	38
Hardware Debugging Tools.............................................................................................	39

Introduction to the LPC2000	Introduction

Important!...................................................................................................................	40
Even More Important .................................................................................................	40
Summary...........................................................................................................................	40
Chapter 3: System Peripherals ......................................................................	42
Outline...............................................................................................................................	42
Bus Structure....................................................................................................................	42
Memory Map ....................................................................................................................	44
Register Programming.....................................................................................................	45
Memory Accelerator Module ..........................................................................................	45
Example MAM Configuration .......................................................................................	49
FLASH Memory Programming......................................................................................	50
Memory Map Control.....................................................................................................	50
Bootloader ......................................................................................................................	51
Philips ISP Utility...........................................................................................................	52
In-Application Programming .........................................................................................	53
External Bus Interface.....................................................................................................	54
External Memory Interface ............................................................................................	54
Using The External Bus Interface ..................................................................................	57
Booting From ROM .........................................................................................................	58
Phase Locked Loop ..........................................................................................................	60
VLSI Peripheral Bus Divider..........................................................................................	62
Example Code: PLL And VPB Configuration........................................................	63
Power Control...................................................................................................................	64
LPC2000 Interrupt System .............................................................................................	66
Pin Connect Block..........................................................................................................	66
External Interrupt Pins ...................................................................................................	66
Interrupt Structure ..........................................................................................................	67
FIQ interrupt...................................................................................................................	68
Leaving An FIQ Interrupt ..............................................................................................	68
Example Program: FIQ Interrupt ..............................................................................	69
Vectored IRQ .................................................................................................................	70
Leaving An IRQ Interrupt ..............................................................................................	71
Leaving An IRQ Interrupt ..............................................................................................	72
Example Program: IRQ interrupt ...............................................................................	72
Non-Vectored Interrupts ................................................................................................	73
Leaving A Non-Vectored IRQ Interrupt ........................................................................	73
Example Program: Non-Vectored Interrupt...............................................................	73
Nested Interrupts ............................................................................................................	75
Summary...........................................................................................................................	76
Chapter 4: User Peripherals...........................................................................	78
Outline...............................................................................................................................	78

Introduction to the LPC2000	Introduction

General Purpose I/O ........................................................................................................	78
General Purpose Timers..................................................................................................	79
PWM Modulator ..............................................................................................................	82
Real Time Clock ...............................................................................................................	85
Watchdog ..........................................................................................................................	88
UART.................................................................................................................................	90
I2C Interface.....................................................................................................................	94
SPI Interface .....................................................................................................................	99
Analog To Digital Converter.........................................................................................	101
Digital To Analog Converter.........................................................................................	104
CAN Controller ..............................................................................................................	105
ISO 7 Layer Model...................................................................................................	105
CAN Node Design .......................................................................................................	106
CAN Message Objects .................................................................................................	107
CAN Bus Arbitration ...................................................................................................	109
Bit Timing ....................................................................................................................	110
CAN Message Transmission........................................................................................	112
CAN Error Containment ..............................................................................................	115
CAN Message Reception .............................................................................................	118
Acceptance Filtering ....................................................................................................	119
Configuring The Acceptance Filter..........................................................................	120
Summary.........................................................................................................................	122
Chapter 5: Keil Tutorial ...............................................................................	124
Installation ......................................................................................................................	124
Using the Keil UVISION IDE .....................................................................................	125
Exercise 1: Using the Keil Toolset...................................................................	126
Using The Debugger.......................................................................................................	133
Using The ULINK Hardware Debugger ......................................................................	138
Setting up the ULINK JTAG hardware debugger:.......................................................	138
Exercise 2: Startup code...................................................................................	141
Exercise 3: Using THUMB code .....................................................................	142
Exercise 4: Using STDIO libraries..................................................................	144
Exercise 5: Simple interrupt.............................................................................	146
Exercise 6: Software Interrupt..........................................................................	148
Exercise 7: Memory Accelerator Module ........................................................	149
Exercise 8: In-Application programming.........................................................	152
Exercise 9: External Bus Interface ...................................................................	153
Exercise 10 Phase Locked Loop ......................................................................	157
Exercise 11: Fast Interrupt ...............................................................................	159
Exercise 12: Vectored Interrupt .......................................................................	160
Exercise 13 : Non Vectored Interrupt ..............................................................	162
Exercise 14: Nested Interrupts ........................................................................	163

Introduction to the LPC2000	Introduction

Exercise 15: General purpose IO pins..............................................................	164
Exercise 16: Timer Capture..............................................................................	165
Exercise 17: Timer Match ................................................................................	167
Exercise 18: Dual-Edge (Symmetrical) PWM Generation. .............................	170
Exercise 19: Real Time Clock..........................................................................	172
Exercise 20: UART ..........................................................................................	173
Exercise 21: I2C interface ................................................................................	174
Exercise 22: SPI ...............................................................................................	175
Exercise 22: SPI ...............................................................................................	176
Exercise 23: Analog To Digital Converter.......................................................	177
Exercise 24: Digital to Analogue Converter ...................................................	178
Exercise 25: Transmitting CAN Data ..............................................................	179
Exercise 26: Receiving CAN Data...................................................................	180
Chapter 6: Tutorial With GNU Tools .........................................................	182
Intoduction......................................................................................................................	182
GCC Startup Code.........................................................................................................	182
Interworking ARM/THUMB Code ..............................................................................	182
Accessing Peripherals ....................................................................................................	182
Interrupt Service Routines ............................................................................................	182
Software Interrupt ........................................................................................................	183
Inline Functions..............................................................................................................	183
Exercise 1: Using The Keil Toolset With The GNU Compiler .......................	184
Exercise 2: Startup Code ..................................................................................	189
Exercise 3: Using THUMB Code.....................................................................	190
Exercise 4: Using The GNU Libraries .............................................................	192
Exercise 5: Simple Interrupt.............................................................................	193
Exercise 6: Software Interrupt..........................................................................	195
Appendices .....................................................................................................	197
Appendix A .....................................................................................................................	197
Bibliography.................................................................................................................	197
Webliography ...............................................................................................................	197
Reference Sites.........................................................................................................	197
Tools and Software Development ................................................................................	197
Evaluation Boards And Modules..................................................................................	197

Introduction to the LPC2000	Introduction

Introduction

This book is intended as a hands-on guide for anyone planning to use the Philips LPC2000 family of microcontrollers in a new design. It is laid out both as a reference book and as a tutorial. It is assumed that you have some experience in programming microcontrollers for embedded systems and are familiar with the C language. The bulk of technical information is spread over the first four chapters, which should be read in order if you are completely new to the LPC2000 and the ARM7 CPU.

The first chapter gives an introduction to the major features of the ARM7 CPU. Reading this chapter will give you enough understanding to be able to program any ARM7 device. If you want to develop your knowledge further, there are a number of excellent books which describe this architecture and some of these are listed in the bibliography. Chapter Two is a description of how to write C programs to run on an ARM7 processor and, as such, describes specific extensions to the ISO C standard which are necessary for embedded programming. In this book a commercial compiler is used in the main text, however the GCC tools have also been ported to ARM.

Appendix A details the ARM-specific features of the GCC tools. Having read the first two chapters you should understand the processor and its development tools. Chapter Three then introduces the LPC2000 system peripherals. This chapter describes the system architecture of the LPC2000 family and how to set the chip up for its best performance. In Chapter Four we look at the on-chip user peripherals and how to configure them for our application code.

Throughout these chapters various exercises are listed. Each of these exercises are described in detail in Chapter Five, the Tutorial section. The Tutorial contains a worksheet for each exercise which steps you through an important aspect of the LPC200. All of the exercises can be done with the evaluation compiler and simulator which come on the CD provided with this book. A low-cost starter kit is also available which allows you to download the example code on to some real hardware and “prove” that it does in fact work. It is hoped that by reading the book and doing the exercises you will quickly become familiar with the LPC2000.

Introduction to the LPC2000	Introduction

1 / 201 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 > Следующая >>>

Соседние файлы в предмете Микроконтроллеры ЭВМ

#
12.08.201331.16 Mб149Programming And Customizing The Avr Microcontroller (Gadre D.V., 2001).pdf
#
12.08.20137.2 Mб296Programming Microcontrollers in C, 2-nd edit (Ted Van Sickle, 2001).pdf
#
12.08.2013365.8 Кб85Real-time processing with the Philips LPC ARM mcu using GCC and uCOS II RTOS (D.W. Hawkins, 2006).pdf
#
12.08.2013132.98 Кб96Recommended C Style and Coding Standards (L.W. Cannon, 1990).pdf
#
12.08.201341.97 Mб104Single- and Multi-Chip Microcontroller Interfacing For the Motorola 68HC12 (G.J. Lipovski, 1999).pdf
#
12.08.20136.1 Mб143The insider's guide to the Philips ARM7-based microcontrollers (T. Martin, 2005).pdf
#
12.08.20132.93 Mб222The Microcontroller Idea book (Jan Akelson, 1997).pdf
#
12.08.20132.85 Mб245The Microcontroller Idea Book (Jan Axelson, 1994).pdf
#
12.08.20132.46 Mб229The PIC Microcontroller Book for beginning (Nebojsa Matic).pdf
#
12.08.20133.92 Mб127The quintessential PIC microcontroller (S. Katzen, 2000).pdf
#
12.08.20135.64 Mб111What is a Microcontroller (Paralax, v2.2, student guide, 2004).pdf